linux-kernel - [tip:perf/core] perf probe: Fix line range description since a single file is allowed

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Date:	Wed, 22 Dec 2010 11:31:35 GMT
From:	tip-bot for Franck Bui-Huu <fbuihuu@...il.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	acme@...hat.com, linux-kernel@...r.kernel.org, hpa@...or.com,
	mingo@...hat.com, masami.hiramatsu.pt@...achi.com,
	fbuihuu@...il.com, tglx@...utronix.de
Subject: [tip:perf/core] perf probe: Fix line range description since a single file is allowed

Commit-ID:  9d95b580a8d64ef4d1660a21a9de0658fe29f041
Gitweb:     http://git.kernel.org/tip/9d95b580a8d64ef4d1660a21a9de0658fe29f041
Author:     Franck Bui-Huu <fbuihuu@...il.com>
AuthorDate: Mon, 20 Dec 2010 15:18:03 +0100
Committer:  Arnaldo Carvalho de Melo <acme@...hat.com>
CommitDate: Tue, 21 Dec 2010 16:20:12 -0200

perf probe: Fix line range description since a single file is allowed

	$ perf-probe -L sched.c

is currently allowed but not documented.

Cc: Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>
LKML-Reference: <1292854685-8230-5-git-send-email-fbuihuu@...il.com>
Signed-off-by: Franck Bui-Huu <fbuihuu@...il.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
 tools/perf/Documentation/perf-probe.txt |    2 +-
 tools/perf/util/probe-event.c           |   13 ++++++++-----
 2 files changed, 9 insertions(+), 6 deletions(-)

diff --git a/tools/perf/Documentation/perf-probe.txt b/tools/perf/Documentation/perf-probe.txt
index 4e23232..86b797a 100644
--- a/tools/perf/Documentation/perf-probe.txt
+++ b/tools/perf/Documentation/perf-probe.txt
@@ -117,7 +117,7 @@ LINE SYNTAX
 -----------
 Line range is described by following syntax.
 
- "FUNC[:RLN[+NUM|-RLN2]]|SRC:ALN[+NUM|-ALN2]"
+ "FUNC[:RLN[+NUM|-RLN2]]|SRC[:ALN[+NUM|-ALN2]]"
 
 FUNC specifies the function name of showing lines. 'RLN' is the start line
 number from function entry line, and 'RLN2' is the end line number. As same as
diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c
index b812f14..3ba9c53 100644
--- a/tools/perf/util/probe-event.c
+++ b/tools/perf/util/probe-event.c
@@ -515,15 +515,18 @@ int show_available_vars(struct perf_probe_event *pevs __unused,
 }
 #endif
 
+/*
+ * Stuff 'lr' according to the line range described by 'arg'.
+ * The line range syntax is described by:
+ *
+ *         SRC[:SLN[+NUM|-ELN]]
+ *         FNC[:SLN[+NUM|-ELN]]
+ */
 int parse_line_range_desc(const char *arg, struct line_range *lr)
 {
 	const char *ptr;
 	char *tmp;
-	/*
-	 * <Syntax>
-	 * SRC:SLN[+NUM|-ELN]
-	 * FUNC[:SLN[+NUM|-ELN]]
-	 */
+
 	ptr = strchr(arg, ':');
 	if (ptr) {
 		lr->start = (int)strtoul(ptr + 1, &tmp, 0);
--
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